Events that are independent of each other can be considered unrelated.
Events that are dependent of each other can be considered related.
A person who has poor eyesight does not necessarily also have poor hearing. So independent.A well trained employee is most likely going to produce good results. So dependent.Cloudy skies could happen in any season, not just winter. So independent.A left handed person could have any hair color, not just blonde. So independent.Squash and Tennis, although alike, are different sports. Not everyone who plays one plays the other. So independent.